High Scalability

article thumbnail

The Swedbank Outage shows that Change Controls don't work

High Scalability

This week I’ve been reading through the recent judgment from the Swedish FSA on the Swedbank outage. If you’re unfamiliar with this story, Swedbank had a major outage in April 2022 that was caused by an unapproved change to their IT systems. It temporarily left nearly a million customers with incorrect balances, many of whom were unable to meet payments.

article thumbnail

Highscalability is Up For Sale

High Scalability

Hi everyone, First, I’d like to sincerely thank everyone who has supported Highscalability over the years. We’ve grown together through some interesting times. Massive changes have occurred in how systems are built, and my goal has always been to help people learn how to build them better. I’d like to think that goal was accomplished.

Systems 205
Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

article thumbnail

Gossip Protocol Explained

High Scalability

You can subscribe to the system design newsletter to excel in system design interviews and software architecture. The original article was published on systemdesign.one website. What Is Gossip Protocol?

article thumbnail

Lessons Learned Running Presto at Meta Scale

High Scalability

Presto is a free, open source SQL query engine. We’ve been using it at Meta for the past ten years, and learned a lot while doing so. Running anything at scale - tools, processes, services - takes problem solving to overcome unexpected challenges. Here are four things we learned while scaling up Presto to Meta scale, and some advice if you’re interested in running your own queries at scale.

article thumbnail

Consistent hashing algorithm

High Scalability

This is a guest article by NK. You can view the original article Consistent hashing explained on systemdesign.one website. How does consistent hashing work?

article thumbnail

What is Cloud Computing? According to ChatGPT.

High Scalability

DALL-E picture generated from the answer. I was curious, given all the ChatGPT love, what it would make of some of our favorite topics. I was both impressed and unimpressed. Impressed. ChatGPT instantly generated an response that might make a good answer in a Miss Universe contest. You know, the kind of answer delivered with a radiant smile calculated to offend no one yet still sounds comprehensive and deep.

Cloud 201
article thumbnail

Stuff The Internet Says On Scalability For December 2nd, 2022

High Scalability

Never fear, HighScalability is here! 1958: An engineer wiring an early IBM computer 2021: An engineer wiring an early IBM quantum computer. @enclanglement. My Stuff: I'm proud to announce a completely updated and expanded version of Explain the Cloud Like I'm 10 ! This version adds 2x more coverage, with special coverage of AWS, Azure, GCP, and K8s.

Internet 311